P22357-40

PISTON METRO TURBO MEGA 9.4cr +40 ONLY 9.38cc DISH

Sold as a single piston and although for Turbos is from original Rover casting and tooling to run on 5psi turbo boost. Now with 9.38cc. They use our mega ringset C-AJJ3379-40.

If using more boost you need to be working on a lower CR with a total cylinder volume of 55cc in piston/block/head gasket and cylinder head.

Also when increasing boost pressures it is essential to have a modified ignition advance/retard curve to prevent detonation and ensure the inlet charge temperature does not exceed 40 degrees C by the fitment of a suitable intercooler.

If our advice is not followed it is very likley you will break the ring lands on your new pistons.

Was £77.25 exc vat
Was £92.70 inc vat
Now £65.66 exc vat
Now £78.79 inc vat

In stock

Recommended usage 1 x P22357-40 to fit one mini.
See details below of where P22357-40 is used in AKM manual. Block Components & Pistons - Qty 1

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PISTON METRO TURBO MEGA 9.4cr +40 ONLY 9.38cc DISH

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